Across TCGA pan-cancer cohorts, IL18 mass-spec protein is linked to patient survival in 2 of 34 cancer types, making it a survival-associated IL18 data layer compared with 24 for mass-spec protein and 2 for mutation status.
The strongest signal is observed in head and neck squamous cell carcinoma (HNSC), where higher IL18 mass-spec protein is associated with better disease-free survival. In most high-consensus cancer types, elevated IL18 expression acts as an unfavorable survival marker, although some lineages such as HNSC show a favorable association.
HNSC and CCRCC are the cancer types where IL18 mass-spec protein most reproducibly stratifies survival.